|
City,
State County Country |
Intersection (Lat, Lng) |
Type Status |
Control Type / Other Control Type | Approaches / Driveways / ICD (m) |
Functional Class / LaneType |
Year Completed | Comments |
|---|---|---|---|---|---|---|---|
|
McCordsville,
IN Hancock Co. United States |
Mount Comfort Rd. / W 400 N (39.84148, -85.91530) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
2024 | |
|
McCordsville,
IN Hancock Co. United States |
Mount Comfort Rd. / Airport Blvd. / W Airport Blvd. (39.84309, -85.91530) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
2024 | |
|
McCordsville,
IN Hancock Co. United States |
Mount Comfort Rd. / Enterprise Dr. (39.85252, -85.91544) |
Roundabout Unknown |
All-Way Yield None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
2024 | |
|
Martinsville,
IN Morgan Co. United States |
SR 144 / Old SR 37 (39.56651, -86.25263) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 50.2920 |
Other (At-Grade) Multilane (2 Lane, 2x2 max) |
2023 | |
|
Bloomington,
IN Monroe Co. United States |
W Woodyard Rd. / N Curry Pike / W Hunter Valley Rd. (39.19027, -86.58242) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 56.3877 |
Other (At-Grade) Multilane (2 Lane, 2x1 max) |
2022 | Series of 2 roundabouts. Striped out spiral in circulatory roadway. https://www.heraldtimesonline.com/story/news/traffic/2022/03/03/work-2-6-m-double-roundabout-bloomington-start-next-week/9332294002/ |
|
Bloomington,
IN Monroe Co. United States |
W Woodyard Rd. / N Smith Pike (39.19089, -86.58340) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 36.5760 |
Other (At-Grade) Single-Lane |
2022 | Series of 2 roundabouts. |
|
Seymour,
IN Jackson Co. United States |
S Airport Rd. / G Ave. W / G Ave. E / 1st Ave. (38.93787, -85.90766) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2022 | https://tribtown.com/2022/08/13/airport-road-roundabout-opens/ |
|
Merrillville,
IN Lake Co. United States |
Arthur Blvd. / McKinley Cir. (41.48737, -87.35982) |
Other Existing |
All-Way Stop None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
Pedestrian access to central island. | |
|
Blaine,
GA Pickens Co. United States |
GA 136 / GA 136 Connector (34.51086, -84.55772) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2022 | Replaced triangular set of intersections. |
|
Double Oak,
TX Denton Co. United States |
Waketon Rd. / Chinn Chapel Rd. (33.06268, -97.08807) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 36.5760 |
Other (At-Grade) Single-Lane |
2022 | On border between Flower Mound and Double Oak https://www.doubleoak.texas.gov/public-works/news/waketon-road-detour-09302022 |
|
Tulcea,
Tulcea Romania |
DN22-E87 (Danube Delta) / Strada 9 Mai / Strada Grigore Antipa (45.17967, 28.80456) |
Other Existing |
All-Way Yield None |
4 Approaches 0 Driveways |
Other (At-Grade) Multilane (3+ Lane) |
Parking along circulatory roadway. | |
|
Tooele,
UT Tooele Co. United States |
400 W / 2400 N (40.57264, -112.31272) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 36.5760 |
Other (At-Grade) Single-Lane |
2023 | |
|
Chaska,
MN Carver Co. United States |
STH 41 (N Chestnut St.) / Peavey Rd. (44.84105, -93.59896) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Multilane (2 Lane, 2x1 max) |
2023 | https://www.swnewsmedia.com/chaska_herald/news/local/news_briefs/the-highway-41-and-peavey-road-roundabout-is-complete/article_f6380990-8fb7-11ee-badc-03f570cc07d0.html |
|
Sarasota,
FL Sarasota Co. United States |
N Euclid Ave. / 24th St. (27.35795, -82.51808) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 1 Driveways 25.9080 |
Other (At-Grade) Single-lane w/ Traversable Central Island |
2011 | Oval shaped. ICD = 85 ft x 55 ft. Replaced offset T-intersections. |
|
Saddle Creek,
FL Sarasota Co. United States |
SR 72 / Bee Ridge Rd. Extension / Loraine Rd. (27.25812, -82.40127) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 36.5760 |
Other (At-Grade) Single-Lane |
2023 | |
|
Proctor Road,
FL Sarasota Co. United States |
SR 72 (Clark Rd.) / Proctor Rd. / Dove Ave. (27.26904, -82.42112) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 42.6720 |
Other (At-Grade) Single-Lane |
2023 | Yield-controlled right-turn bypass lanes on north and east legs. |
|
Sarasota,
FL Sarasota Co. United States |
Starry Night Ave. / Luna Ln. (27.24729, -82.40412) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 48.7680 |
Other (At-Grade) Single-Lane |
2019 | |
|
Miami,
FL Miami-Dade Co. United States |
NW 111th St. / NW 10th Ave. (25.87632, -80.21429) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 21.3360 |
Other (At-Grade) Single-Lane |
2007 | Year Completed estimated (2006-2007). |
|
Goulds,
FL Miami-Dade Co. United States |
SW 216th St. / SW 122nd Ave. (25.56620, -80.38868) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 30.4800 |
Other (At-Grade) Single-Lane |
2022 | Year Completed estimated (2020-2022). |
|
Nampa,
ID Canyon Co. United States |
Cherry Ln. / N Idaho Center Rd. / N Can Ada Rd. (43.61960, -116.51332) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
2023 | https://www.facebook.com/cityofnampa.us/posts/pfbid01GwhiVMxbiDrKP67dQPCeqSCxBAPfqshgLEvruyRWwiVFBPnSGJoAT37JMNEn2NUl |
|
Naples,
FL Collier Co. United States |
Marbella Lakes Dr. / Hermosa Way / Whippoorwill Ln. (26.19707, -81.74720) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2023 | https://www.instagram.com/colliercountyfl/p/C042GnMslfu/?img_index=1 |
|
Maidenhead,
England Windsor And Maidenhead United Kingdom |
Braywick Roundabout: A308 / A308 (M) / A330 / Braywick Rd. (51.50423, -0.71170) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways |
Other (At-Grade) Multilane (2 Lane, 2x2 max) |
||
|
Fishery,
England Windsor And Maidenhead United Kingdom |
A308 (Braywick Rd.) / Stafferton Way / Rushington Ave. (51.51711, -0.72021) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways |
Other (At-Grade) Multilane (3+ Lane) |
||
|
Maidenhead,
England Windsor And Maidenhead United Kingdom |
A4 / A308 (51.52276, -0.72468) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways |
Other (At-Grade) Multilane (3+ Lane) |
||
|
Maidenhead,
England Windsor And Maidenhead United Kingdom |
A4 / B4447 (51.52457, -0.72022) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways |
Other (At-Grade) Multilane (2 Lane, 2x2 max) |
||
|
Maidenhead,
England Windsor And Maidenhead United Kingdom |
A4 / Forlease Rd. (51.52442, -0.71510) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways |
Other (At-Grade) Multilane (2 Lane, 2x2 max) |
||
|
Maidenhead,
England Windsor And Maidenhead United Kingdom |
A4 / A4094 (Ray Mead Rd.) (51.52395, -0.70372) |
Roundabout Existing |
All-Way Yield Unknown |
3 Approaches 1 Driveways |
Other (At-Grade) Multilane (2 Lane, 2x1 max) |
||
|
Maidenhead,
England Bucks United Kingdom |
A4 (Bath Rd.) / Jubilee Ln. (51.52411, -0.69923) |
Roundabout Existing |
All-Way Yield Unknown |
3 Approaches 0 Driveways |
Other (At-Grade) Single-Lane |
||
|
Burnham,
England Bucks United Kingdom |
A4 (Bath Rd.) / B3026 (Lake End Rd.) / Lent Rise Rd. (51.52124, -0.66740) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways |
Other (At-Grade) Multilane (2 Lane, 2x2 max) |
||
|
Cippenham,
England Slough United Kingdom |
A4 (Bath Rd.) / M4 (Hunterscombe Spur) / Goldsworthy Way (51.52017, -0.65469) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways |
Other (At-Grade) Multilane (3+ Lane) |
||
|
Cippenham,
England Slough United Kingdom |
Bower Way / Lewis Way (51.51827, -0.63716) |
Other Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways |
Other (At-Grade) Single-Lane |
Parking along circulatory roadway. | |
|
Cippenham,
England Slough United Kingdom |
Lower Cippenham Ln. / Spring Ln. (51.51471, -0.63438) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways |
Other (At-Grade) Single-Lane |
||
|
Chalvey,
England Slough United Kingdom |
A355 (Tums Ln.) / Church St. / Cippenham Ln. (51.50871, -0.61241) |
Signalized Roundabout/Circle Existing |
Signal Unknown |
4 Approaches 0 Driveways |
Other (At-Grade) Multilane (3+ Lane) |
Hamburger shaped. | |
|
Upton Park,
England Slough United Kingdom |
Red Cow Roundabout: A412 / B376 (Datchet Rd.) / Upton Court Rd. (51.50308, -0.58904) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways |
Other (At-Grade) Multilane (2 Lane, 2x2 max) |
||
|
West Drayton,
England Greater London United Kingdom |
A408 (Stockley Rd.) / Prologis Park (51.50251, -0.45118) |
Signalized Roundabout/Circle Existing |
Signal Unknown |
3 Approaches 0 Driveways |
Other (At-Grade) Multilane (3+ Lane) |
||
|
London,
England Greater London United Kingdom |
Prologis Park / Nine Acre Close (51.50223, -0.44740) |
Roundabout Existing |
All-Way Yield Unknown |
3 Approaches 0 Driveways |
Other (At-Grade) Single-Lane |
||
|
Hayes,
England Greater London United Kingdom |
A437 (Dawley Rd.) / Bourne Ave. (51.50250, -0.43051) |
Roundabout Existing |
All-Way Yield Unknown |
4 Approaches 0 Driveways |
Other (At-Grade) Multilane (2 Lane, 2x2 max) |
||
|
Clewer Green,
England Windsor And Maidenhead United Kingdom |
A332 (Royal Windsor Way) / B3024 (Clarence Rd.) / B3173 (Imperial Rd.) (51.47994, -0.62424) |
Signalized Roundabout/Circle Existing |
Signal Unknown |
5 Approaches 0 Driveways |
Other (At-Grade) Multilane (3+ Lane) |
||
|
Windsor Castle,
England Windsor And Maidenhead United Kingdom |
Charles St. / Arthur Rd. / Goswell Rd. (51.48234, -0.61213) |
Roundabout Existing |
All-Way Yield Unknown |
3 Approaches 1 Driveways |
Other (At-Grade) Multilane (2 Lane, unspecified) |
||
|
Clewer Green,
England Windsor And Maidenhead United Kingdom |
A308 (Osborne Rd.) / Alma Rd. (51.47645, -0.61702) |
Roundabout Existing |
All-Way Yield Unknown |
3 Approaches 0 Driveways |
Other (At-Grade) Multilane (2 Lane, unspecified) |
||
|
Spital,
England Windsor And Maidenhead United Kingdom |
B3022 (St Leonard's Rd.) / Bolton Rd. (51.47136, -0.61687) |
Roundabout Existing |
All-Way Yield Unknown |
3 Approaches 0 Driveways |
Other (At-Grade) Single-lane w/ Traversable Central Island |
||
|
Dedworth,
England Windsor And Maidenhead United Kingdom |
B3022 (Winkfield Rd.) / Legoland Windsor (51.46308, -0.64514) |
Roundabout Existing |
All-Way Yield Unknown |
3 Approaches 0 Driveways |
Other (At-Grade) Multilane (2 Lane, 2x1 max) |
||
|
Russell,
ON Prescott and Russell Canada |
St-Guillaume Rd. / Burton Rd. / St Pierre Rd. (45.33172, -75.34597) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 44.0000 |
Other (At-Grade) Single-Lane |
2022 | https://www.russell.ca/en/news/construction-roundabout-vars-417.aspx |
|
Russell,
ON Prescott and Russell Canada |
Notre Dame St. / St Guillaume Rd. / (parking) (45.26964, -75.31120) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 1 Driveways 45.0000 |
Other (At-Grade) Single-Lane |
2013 | Year Completed estimated (2012-2013). |
|
Hampton,
GA Henry Co. United States |
Floyd Rd. / King Rd. / Grafton St. (33.37580, -84.27815) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 38.1000 |
Other (At-Grade) Single-Lane |
2023 | https://mhfnews.org/2023/04/12/east-king-roundabout-is-nearly-complete-in-hampton/ |
|
Stockbridge,
GA Henry Co. United States |
GA 138 / Moseley Dr. (33.56930, -84.16559) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 1 Driveways 30.4800 |
Other (At-Grade) Single-Lane |
2016 | Initially constructed as a mini-roundabout in 2016; upgraded to a full roundabout in 2022. https://mhfnews.org/2022/06/16/gdot-crews-to-enlarge-moseley-drive-roundabout/ |
|
De Soto,
KS Johnson Co. United States |
W 103rd St. / Astra Pkwy. (38.94208, -95.00725) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Unknown |
2023 | https://www.kcur.org/podcast/up-to-date/2024-03-05/heres-how-de-soto-kansas-is-getting-ready-for-massive-panasonic-plants-2025-opening |
|
Greenville,
NC Pitt Co. United States |
W 5th St. / 14th Ave. / Tyson St. (35.61294, -77.38683) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 35.0520 |
Other (At-Grade) Single-Lane |
2024 | https://www.reflector.com/news/local/new-traffic-circle-welcomes-fifth-street-motorists/article_00a1eca6-f341-11ee-9098-bf9358b17966.html |
|
(unincorporated),
TX Fort Bend Co. United States |
Mason Rd. / Beechnut St. (29.68438, -95.73837) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 54.8637 |
Other (At-Grade) Multilane (2 Lane, unspecified) |
2024 | |
|
Grand Island,
NY Erie Co. United States |
South Pkwy. / W River Pkwy. / Beaver Island Park Rd. (42.96786, -78.95880) |
Rotary Existing |
All-Way Yield Unknown |
3 Approaches 0 Driveways 146.3040 |
Other (At-Grade) Multilane (2 Lane, 2x2 max) |
||
|
Orleans,
MA Barnstable Co. United States |
Rte 28 (S Orleans Rd.) / Rte 39 (Harwich Rd.) / Quanset Rd. (41.75145, -69.99094) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 42.6720 |
Other (At-Grade) Single-Lane |
2023 | https://capecodchronicle.com/articles/439/view |
|
Spring Hill,
AL Pike Co. United States |
SR 167 / SR 87 / Carson Waters Rd. (31.67707, -85.95737) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways 42.6720 |
Other (At-Grade) Single-Lane |
2024 | Peanut shaped. Node ICDs are 140 ft; length is 485 ft. https://www.troymessenger.com/2024/03/25/drone-footage-of-new-pike-county-roundabout/ |
|
Athens,
AL Limestone Co. United States |
Forrest St. / Ridgelawn Dr. (34.79632, -86.94443) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 0.0000 |
Other (At-Grade) Single-Lane |
2023 | No splitter island on north leg. |
|
Eden,
England Bucks United Kingdom |
Abbey Way Gyratory: A40 (Abbey Way / Frances Dove Way) / A404 (Marlow Hill / Amersham Hill) / Queen Alexandra Rd. / St. Mary St. (51.62703, -0.75067) |
Roundabout Existing |
All-Way Yield Unknown |
6 Approaches 1 Driveways |
Other (At-Grade) Ring junction (3+ mini-roundabouts in ring) |
Ring junction of five mini-roundabouts. | |
|
Fort Riley,
KS Geary Co. United States |
Huebner Rd. / (parking) (39.08363, -96.76512) |
Roundabout Existing |
All-Way Yield Unknown |
3 Approaches 0 Driveways 33.2232 |
Other (At-Grade) Single-Lane |
2011 | Year Completed estimated (2010-2012). |
|
Fort Riley,
KS Geary Co. United States |
Huebner Rd. / (unknown) (39.08638, -96.76175) |
Roundabout Existing |
All-Way Yield Unknown |
3 Approaches 0 Driveways 45.7200 |
Other (At-Grade) Single-Lane |
2011 | Year Completed estimated (2010-2012). |
|
Vail,
CO Eagle Co. United States |
Chamonix Rd. / I-70 WB Ramps / North Frontage Rd. (39.62828, -106.42120) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways 45.7200 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x2 max) |
1997 | |
|
Vail,
CO Eagle Co. United States |
Chamonix Rd. / I-70 EB Ramps / South Frontage Rd. (39.62753, -106.42020) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways 45.7200 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max) |
1997 | |
|
Avon,
CO Eagle Co. United States |
Avon Rd. / I-70 WB Ramps (39.63782, -106.52080) |
Roundabout Existing |
All-Way Yield Active Pedestrian Warning (flashing yellow) |
3 Approaches 0 Driveways 42.6720 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x2 max) |
1997 | Highway ref. pt. 70-166.62. Raindrop shaped. |
|
Avon,
CO Eagle Co. United States |
Avon Rd. / I-70 EB Ramps (39.63683, -106.52170) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 44.1960 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x2 max) |
1997 | Highway ref. pt. 70-166.62. Raindrop shaped. |
|
De Pere,
WI Brown Co. United States |
Scheuring Rd. (CTH F) / US 41 NB Ramps (44.43074, -88.10989) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 53.3400 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max) |
2011 | Series of 6 roundabouts. Yield-controlled right-turn bypass lane on south leg; merging right-turn bypass lane on east leg. Opened September 2011. Circular central island. |
|
Ritchie,
MD Prince Georges Co. United States |
Ritchie-Marlboro Rd. / I-95 SB Ramps (38.86894, -76.84738) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 770.9968 |
Freeway Ramps (Grade-Separated) Multilane (3+ Lane) |
2001 | Opening initially with two lanes. Expanded from two lanes to three lanes in 2010. 21442 |
|
Ritchie,
MD Prince Georges Co. United States |
Ritchie-Marlboro Rd. / I-95 NB Ramps (38.86824, -76.84158) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 67.0560 |
Freeway Ramps (Grade-Separated) Multilane (3+ Lane) |
2001 | Opened initially with two lanes. Expanded from two lanes to three lanes in 2010. 21442 |
|
De Pere,
WI Brown Co. United States |
Scheuring Rd. (CTH F) / US 41 SB Ramps (44.43050, -88.11402) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 56.3880 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x2 max) |
2011 | Series of 6 roundabouts. Opened September 2011. |
|
Ellicott City,
MD Howard Co. United States |
MD 103 / MD 100 WB Ramps (39.20846, -76.78294) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 33.3154 |
Freeway Ramps (Grade-Separated) Single-Lane |
1998 | Opened November 1998. ICD estimated from Google Maps linework. |
|
Ellicott City,
MD Howard Co. United States |
MD 103 / MD 100 EB Ramps (39.20733, -76.78243) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 30.5396 |
Freeway Ramps (Grade-Separated) Single-Lane |
1998 | Opened November 1998. ICD estimated from Google Maps linework. |
|
Ellicott City,
MD Howard Co. United States |
Snowden River Pkwy. / MD 100 WB Ramps (39.21233, -76.79544) |
Roundabout Existing |
All-Way Yield Metering Signal |
3 Approaches 0 Driveways 25.9105 |
Freeway Ramps (Grade-Separated) Single-Lane |
1998 | Opened November 1998. Metering signal on Snowden River Pkwy approach. ICD estimated from Google Maps linework. |
|
Ellicott City,
MD Howard Co. United States |
MD 104 (Waterloo Rd.) / MD 100 WB Ramps (39.22470, -76.80600) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 45.7200 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x2 max) |
1999 | |
|
Topeka,
KS Shawnee Co. United States |
Rice Rd. / I-70 WB Ramps / Sycamore Dr. (39.03610, -95.62310) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 44.5293 |
Freeway Ramps (Grade-Separated) Single-Lane |
2000 | Part of a major realignment of I-70 and K-4. Sycamore Drive is one way with two westbound lanes (into the roundabout). Partial cloverleaf AB interchange type. Completed October 2000. ICD estimated from Google Maps linework. |
|
Topeka,
KS Shawnee Co. United States |
Rice Rd. / I-70 EB Ramps / Cyprus Drive (39.03190, -95.62320) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 52.8817 |
Freeway Ramps (Grade-Separated) Single-Lane |
2000 | Part of a major realignment of I-70 and K-4. Cyprus Drive is One Way Eastbound (away from the roundabout). Partial cloverleaf AB interchange type. Completed October 2000. ICD estimated from Google Maps linework. |
|
Green Bay,
WI Brown Co. United States |
W. Mason St. (STH 32-STH 54) / US 41 SB Ramps (44.52418, -88.08284) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 45.9811 |
Freeway Ramps (Grade-Separated) Multilane (3+ Lane) |
2012 | Series of 3 roundabouts. Opened August 31, 2012. ICD estimated from Google Maps linework. |
|
Green Bay,
WI Brown Co. United States |
W. Mason St. (STH 32-STH 54) / US 41 NB Ramps (44.52415, -88.08103) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 43.4266 |
Freeway Ramps (Grade-Separated) Multilane (3+ Lane) |
2012 | Series of 3 roundabouts. Opened August 31, 2012. ICD estimated from Google Maps linework. |
|
Arcata,
CA Humboldt Co. United States |
Guintoli Ln. / US 101 SB Ramps (40.90400, -124.08920) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 39.7180 |
Freeway Ramps (Grade-Separated) Single-Lane |
2005 | ICD estimated from Google Maps linework. |
|
Arcata,
CA Humboldt Co. United States |
Guintoli Ln. / US 101 NB Ramps (40.90492, -124.08510) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 34.3015 |
Freeway Ramps (Grade-Separated) Single-Lane |
2005 | ICD estimated from Google Maps linework. |
|
Kingston,
NY Ulster Co. United States |
I-587 / Rte 28 / I-87 Ramps / Washington Ave. (41.94362, -74.02840) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 60.9600 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x2 max) |
2000 | A 600 ft diameter traffic circle was replaced by 200 ft diameter roundabout. At Exit 19 from I-87. I-587 terminates in roundabout. |
|
Anchorage,
AK Anchorage United States |
C St. / O'Malley EB Ramps (61.12273, -149.88630) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 53.3400 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, 2x1 max) |
2006 | |
|
Newton,
KS Harvey Co. United States |
Broadway St. / I-135 Ramps (38.05000, -97.32250) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 45.1441 |
Freeway Ramps (Grade-Separated) Single-Lane |
2003 | Single-point interchange. Near roundabout interchange at I-135/1st Street. Roundabout completed January 2002, ramps from I-135 to the roundabout reopened March 2002. Eliptical structure incorporating both NB and SB ramps. Previously controlled by one-way stop ICD estimated from Google Maps linework. |
|
Topeka,
KS Shawnee Co. United States |
46th St. / US 75 Ramps (39.12934, -95.71959) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 124.9680 |
Freeway Ramps (Grade-Separated) Single-Lane |
2002 | Roundabout under structure as part of single-point interchange. Elliptical shaped. ICD = 410 ft x 270 ft. Original intersection was at grade. Completed November 2002. |
|
Anchorage,
AK Anchorage United States |
Dowling Rd. / New Seward Hwy SB Ramps (61.16636, -149.85780) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 35.1352 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) |
2004 | Previously controlled by one-way stop ICD estimated from Google Maps linework. |
|
Anchorage,
AK Anchorage United States |
Dowling Rd. / New Seward Hwy NB Ramps (61.16637, -149.85520) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 38.0151 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) |
2004 | Spiral striping. ICD estimated from Google Maps linework. |
|
Lewisville,
NC Forsyth Co. United States |
Concord Church Rd. / US 421 SB Ramp / Williams Rd. (36.08978, -80.43072) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 29.9191 |
Freeway Ramps (Grade-Separated) Single-Lane |
2000 | Solved capacity problem. Previously controlled by one-way stop ICD estimated from Google Maps linework. |
|
St. George,
UT Washington Co. United States |
E. Brigham Rd. / I-15 NB Ramps (37.05939, -113.58350) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 42.8889 |
Freeway Ramps (Grade-Separated) Single-Lane |
2006 | Raindrop-shaped interchange terminal. ICD estimated from Google Maps linework. |
|
Scaggsville,
MD Howard Co. United States |
MD 216 / US 29 SB Ramps (39.14562, -76.90418) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 53.7228 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) |
2001 | Series of 4 roundabouts. ICD estimated from Google Maps linework. |
|
Scaggsville,
MD Howard Co. United States |
MD 216 / US 29 NB Ramps / Ice Crystal Dr. (39.14476, -76.89799) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 53.7234 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) |
2001 | Series of 4 roundabouts. ICD estimated from Google Maps linework. |
|
Millington,
MD Kent Co. United States |
MD 291 / US 301 SB Ramps (39.26463, -75.86641) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 31.4393 |
Freeway Ramps (Grade-Separated) Single-Lane |
1999 | Opened August 1999. ICD estimated from Google Maps linework. |
|
Millington,
MD Kent Co. United States |
MD 291 / US 301 NB Ramps (39.26386, -75.86260) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 28.6656 |
Freeway Ramps (Grade-Separated) Single-Lane |
1999 | Opened August 1999. ICD estimated from Google Maps linework. |
|
Gig Harbor,
WA Pierce Co. United States |
Borgen Blvd. / SR 16 NB Ramps / Burnham Dr. (47.35843, -122.61260) |
Roundabout Existing |
All-Way Yield None |
6 Approaches 0 Driveways 47.7339 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) |
2001 | Oval shaped central island. 6 legged configuration includes a on-ramp (outbound)leg. Central island is used as a roadway storm detention pond. Completed Summer/Fall 2001. Previously controlled by one-way stop ICD estimated from Google Maps linework. |
|
Richland,
WA Benton Co. United States |
Steptoe Dr. / SR 240 EB Ramps / Columbia Park Trl. (46.23893, -119.24546) |
Roundabout Existing |
All-Way Yield Metering Signal |
5 Approaches 0 Driveways 49.5635 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) |
2007 | 5th leg is on-ramp to SR 240. Opened November 2007. Lane configuration reduced in 2016. Modified in 2018 to add metering signal. According to local news (link below) they started metering the traffic on the westbound Columbia Park Trail approach in 2018. It only turns on when traffic coming off the freeway gets backed up. https://97rockonline.com/tri-cities-roundabout-gets-new-metered-traffic-light-wait-what/ 21442 |
|
St. George,
UT Washington Co. United States |
E. Brigham Rd. / I-15 SB Ramps / Pioneer Rd. (37.05999, -113.58560) |
Roundabout Existing |
All-Way Yield None |
6 Approaches 0 Driveways 78.1526 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) |
2006 | Combines interchange ramps and frontage road. ICD estimated from Google Maps linework. |
|
Advance,
NC Davie Co. United States |
NC 801 / I-40 EB Ramps (36.00655, -80.44083) |
Roundabout Removed |
All-Way Yield None |
3 Approaches 0 Driveways 17.3907 |
Freeway Ramps (Grade-Separated) Single-Lane |
2002 | Developer-built "temporary" intersection fix. Previously controlled by one-way stop ICD estimated from Google Maps linework. |
|
Phoenix,
AZ Maricopa Co. United States |
Happy Valley Rd. / I-17 NB Ramps (33.71291, -112.11477) |
Roundabout Removed |
All-Way Yield None |
4 Approaches 0 Driveways 64.0077 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) |
2020 | Initially constructed 2002, revised 2005. Removed in 2020, replaced with diverging diamond interchange: https://www.youtube.com/watch?v=Xgcxmf9UYWw. https://azdot.gov/adot-blog/requiem-roundabouts-least-ones-happy-valley-road 21442 |
|
Phoenix,
AZ Maricopa Co. United States |
Happy Valley Rd. / I-17 SB Ramps (33.71292, -112.12019) |
Roundabout Removed |
All-Way Yield None |
3 Approaches 0 Driveways 62.4840 |
Freeway Ramps (Grade-Separated) Multilane (2 Lane, unspecified) |
2020 | Initially constructed 2002, revised 2005. Removed in 2020, replaced with diverging diamond interchange: https://www.youtube.com/watch?v=Xgcxmf9UYWw. https://azdot.gov/adot-blog/requiem-roundabouts-least-ones-happy-valley-road 21442 |
|
Frisco,
CO Summit Co. United States |
SH 9 / I-70 WB Ramps (39.59339, -106.09700) |
Roundabout Existing |
All-Way Yield None |
5 Approaches 0 Driveways 34.0524 |
Freeway Ramps (Grade-Separated) Single-Lane |
2000 | Highway ref. pt. 70-202.35. ICD estimated from Google Maps linework. |
|
Gig Harbor,
WA Pierce Co. United States |
Borgen Blvd. / SR 16 SB Ramps (47.35868, -122.61610) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 38.8342 |
Freeway Ramps (Grade-Separated) Single-Lane |
2004 | Opened March 2004. ICD estimated from Google Maps linework. |
|
Kaukauna,
WI Outagamie Co. United States |
CTH J / US 41 SB Ramps (44.30645, -88.24948) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 35.8965 |
Freeway Ramps (Grade-Separated) Single-Lane |
2010 | Opened October 11, 2010. ICD estimated from Google Maps linework. |
|
Columbia,
MO Boone Co. United States |
Business Loop 70 / I-70 WB Ramps / Creasy Springs Rd. (38.96655, -92.35241) |
Roundabout Removed |
All-Way Yield Unknown |
5 Approaches 0 Driveways 94.7178 |
Freeway Ramps (Grade-Separated) Single-Lane |
1996 | First roundabout in Missouri by Missouri DOT. Originally built in 1996 per article: https://www.voxmagazine.com/news/all-about-roundabouts-in-columbia/article_93724b2b-8b20-5228-b4de-315c5c3d2004.html. Replaced with roundabout to immediate west. ICD estimated from Google Maps linework. |
|
Carson City,
NV Carson City Co. United States |
Arrowhead Dr. / I-580 SB Ramp (39.19810, -119.77540) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 27.7669 |
Freeway Ramps (Grade-Separated) Single-Lane |
2002 | Future SB on-ramp for Carson City Freeway (I-580). Overpass and roundabouts completed in 2002; freeway ramps completed ~2005. ICD estimated from Google Maps linework. |
|
Carson City,
NV Carson City Co. United States |
Arrowhead Dr. / I-580 NB Ramps / Imus Rd. (39.19840, -119.77380) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 28.6923 |
Freeway Ramps (Grade-Separated) Single-Lane |
2002 | NB off-ramp for Carson City Freeway (I-580) and extension of Imus Road. Overpass and roundabouts completed in 2002. ICD estimated from Google Maps linework. |
|
Sterling Heights,
MI Macomb Co. United States |
Van Dyke Ave. (M-53) / 18 1/2 Mile Rd. (42.60148, -83.03119) |
Roundabout Existing |
All-Way Yield None |
4 Approaches 0 Driveways 76.2000 |
Freeway Ramps (Grade-Separated) Multilane (3+ Lane) |
2005 | Completed June 2005. |
|
Kaukauna,
WI Outagamie Co. United States |
CTH J / US 41 NB Ramps (44.30463, -88.24939) |
Roundabout Existing |
All-Way Yield None |
3 Approaches 0 Driveways 37.6070 |
Freeway Ramps (Grade-Separated) Single-Lane |
2010 | Opened October 11, 2010. ICD estimated from Google Maps linework. |